Jonathan, Jim, Dan, Dave
Jim W reported data errors from 06:14PDT this morning in the full frame. We found that the commissioning frame file for this time is correct on the LDAS QFS file system, but corrupt when NFS exported by the h1ldasgw2 NFS server machine to the nds machines. This is a relatively new solaris server installed this summer to take read-only exports away from h1ldasgw0 when h1fw0 was unstable.
I've opened an FRS for this #6370
Investigation is continuing, including a full characterization of the problem.
I now have a build of daqd frame writer running on h1fw2 (and the test stand) that provides checksum files for all frames being written.
In addition it adds four EPICS channels that give 32bits of the checksum to help with medm monitors for Dave.
Prefix each with IFO:DAQ-FW[012]_ (in general, currently only deployed for H1:DAQ-FW2_)
FRAME_CHECK_SUM_TRUNC
SCIENCE_FRAME_CHECK_SUM_TRUNC
SECOND_FRAME_CHECK_SUM_TRUNC
MINUTE_FRAME_CHECK_SUM_TRUNC